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All Journal J-Sil (Jurnal Teknik Sipil dan Lingkungan) Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Indonesian Journal of Geography Jurnal Ilmu Lingkungan Journal of Degraded and Mining Lands Management Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Ilmiah Rekayasa Pertanian dan Biosistem EnviroScienteae Jurnal Irigasi LIMNOTEK - Perairan Darat Tropis di Indonesia Jurnal Penelitian Sosial dan Ekonomi Kehutanan Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Journal of Environmental Engineering & Waste Management Jurnal Agroekoteknologi Terapan Mamangan Social Science Journal Jurnal Manusia dan Lingkungan
Purwanto, Yanuar Jarwadi
Departemen Teknik Sipil Dan Lingkungan, Fakultas Teknologi Pertanian, Institut Pertanian Bogor, Bogor, 16680, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Transportation

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NERACA AIR SITU CIKARET DAN SITU KABANTENAN DI KABUPATEN BOGOR MENGGUNAKAN PEMODELAN HIDROLOGI SWAT Nugraheni, Claudia Tyas; Pawitan, Hidayat; Purwanto, Yanuar Jarwadi; Ridwansyah, Iwan
LIMNOTEK - Perairan Darat Tropis di Indonesia Vol 26, No 2 (2019)
Publisher : Research Center for Limnology

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Bogor regency which is located in the middle of the Ciliwung basin centered in Cibinong city is experiencing rapid urban development. However, with the rapid urban development, most of these small lakes in either disappear or in degraded conditions. In this area presently still maintain 95 urban small lakes or locally known as ?situ?. Situ has multifunction such as water retention for flood mitigation, irrigation for urban agriculture, fisheries, water sport activities, and ecotourism. The objective of this study was to analyze the water balance of situ. The model was calibrated and validated on the Kampung Kelapa river gauge with manual calibration. The Soil Water Assesment Tool (SWAT) is a hydrological model designed to predict the impact of land use and management on water, sediment and agricultural chemical yields in watersheds, The model was applied to Situ Kabantenan and Cikaret for modeling of the hydrological water balance. The SWAT model simulation was done for the periods of 2008?2015 while it used land use information in 2014. The Calibration was done in 2014 and the validation in 2013, the R2 and Nash Sutcliffe Efficiency (NSE) of the calibration were 0,58 and 0,55 respectively and the validations were 0,54 and 0,49 respectively. The monthly average of volume of Situ Kabantenan and Situ Cikaret from the simulation were 136,955 m3 and 508,907 m3, respectively. The annual inflow of Situ Cikaret was 24,693,822 m3/year and outflow was 25,177,593 m3/year, precipitation was 648,520 m3/year, evaporation was 166,543 m3/year, delta storage 1,794 m3/year, respectively. The average inflow discharge of Situ Cikaret (2008?2015) were 0.78 m3/s and outflow discharge was 0.80 m3/s. The water balance results showed that both sites were in good condition since they have never passed the emergency spillway, but their function needs to be optimized as a flood controller in the Ciliwung Watershed. This study also showed that the SWAT model can be utilized as a potential monitoring tool, especially for small urban lakes as water reservoirs.
Perkiraan sedimentasi Pada Tahun 2018 di Waduk Jatiluhur, Kabupaten Purwakarta: Sedimentation Prediction in Jatiluhur DAM, Purwakarta District Ulfah Sarach Sheftiana; M Yanuar Jarwadi Purwanto; Suria Darma Tarigan
Jurnal Ilmu Tanah dan Lingkungan Vol 23 No 1 (2021): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.23.1.18-21

Abstract

Jatiluhur DAM is one of the multipurpose DAMs in West Java with the design of hydroelectric power plants, water supply in industry, irrigation, fisheries, tourism and flood control. Based on the final report of Juanda Public Corporation in 2000 that the DAM volume in 1964 was 2,970 million m³, in 1987 it was 2,556 million m³, 1995 was 2,456 million m³ and in 2000 was 2,448 million m³. This shows that the DAM volume has decreased by 522 million m³ over a period of 36 years at an altitude of ± 107 masl. The purpose of this study are to calculate sedimentation in the Jatiluhur DAM in 2018. TSS measurements using SNI 06-6989.3-2004 and calculation of sedimentation using direct measurement methods. The results showed that the total sediment in DAM inlet is 859,368.40 tons year-1 and the reservoir outlet is 92,553.33 tons year-1. Based on this data, the total sediment deposited in the Jatiluhur Reservoir in 2018 was 766,815.07 tonnes. So it needs handling in reducing sediment so that the reservoir does not experience silting.
Water Balance Analysis and Design of Water Resources Conservation in Prumpung Watershed, Tuban District, East Java Muhammad Syahdan Shah; Muhammad Yanuar Jarwadi Purwanto
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 3: Desember 2016
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (455.892 KB) | DOI: 10.29244/jsil.1.3.111-124

Abstract

Development of the region will increase water requirement. Increased water use will influence human intervention on water resources. The purpose of this study were to analyze water availability and water demand, and to provide recommendation of conservation to increase water storage capacity in Prumpung basin, Tuban. Prumpung basin geographically located between three sub-districts: Bancar, Kerek and Tambakboyo with an area of 22.319,14 ha. The calculation was conducted using water balance analysis. The total water requirement in Prumpung watershed in 2014 was 138.295.090,73 m3/year and water availability was 64.157.428 m3/year. It meaned that in 2014 Prumpung watershed had water deficit of 74.137.662 m3/year and need water conservation program. Conservation programs were conducted by using artificial well, rorak terrace, and retention pond. The number of conservation unit required were 53.281 units artificial wells, 1.077.708 units rorak terrace, and 72 units retention ponds which can absorb water of 142.665.013 m3/year. Total cost required was Rp 516.823.553.224,00.Keywords: conservation design, water availability, water balance,water deficit, water  requirements
Water Credit Analysis of Water Conservation Infrastructure Unit in Prumpung Watershed (DAS), Tuban District, East Java Wanca Aldrianus; Muhammad Yanuar Jarwadi Purwanto
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 3: Desember 2016
Publisher : Departemen Teknik Sipil dan Lingkungan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (604.283 KB) | DOI: 10.29244/jsil.1.3.125-136

Abstract

Water credit is the activity to increase groundwater by increasing infiltration. The purpose of this research were to design and to analyse water credit of water conservation infrastructure unit in Prumpung DAS. The research consisted of prediction rainfall analysis, designing and water credit analysis of each water conservation infrastructure. The result showed that water credit of single artificial well unit were Rp 6.160.832 to Rp 9.555.674 per m3/year for mediterranean soil, Rp 30.804.158.249 to Rp 47.946.013.645 per m3/year for grumosol soil, and Rp 10.589 to Rp 16.464 per m3/year for regosol soil. Water credit of communal artificial well unit were Rp 10.498.475 to Rp 11.200.082 per m3/year for mediterranean soil, Rp 52.492.374.552 to Rp 56.443.974.147 per m3/year for grumosol soil, and Rp 17.426 to Rp 19.194 per m3/year for regosol soil. Water credit of rorak unit were around Rp 198.701 per m3/year for mediterranean soil and Rp 993.514.151 per m3/year for regosol soil. Water credit of water retention unit were around Rp 14.16 per m3/year for mediterranean soil, Rp 2.125 per m3/year for grumosol soil and Rp. 850 per m3/year for regosol soil.
Land Use Planning for Brackish Water Shrimp Ponds in The North Coast of Tuban, Indonesia Widiatmaka Widiatmaka; Wiwin Ambarwulan; Yudi Setiawan; Muhamad Yanuar Jarwadi Purwanto; Taryono Taryono; Hefni Effendi
Indonesian Journal of Geography Vol 47, No 2 (2015): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1179.354 KB) | DOI: 10.22146/ijg.9268

Abstract

Shrimp is a commodity that is increasingly in demand. The limited land resources implies the need of effective land use planning. The objective of this study was to assess land suitability for brackish water shrimp ponds, which then will be recommended for pond development in the north coast of Tuban, Indonesia. Analytical hierarchy process (AHP) were used to obtain the weight of the different criteria consisted of soil characteristics, topographic, water quality, and infrastructure criteria. The suitable land for brackish water shrimp ponds was determined by weighted overlay in GIS. The results show that the study area contains highly suitable land for brackish water shrimp ponds. Land use and land cover map was interpreted from 2014 SPOT 5 imagery. The area recommended for brackish water shrimp pond wasdelineated by taking into account the suitability and the constraints of land use and land cover.
STATUS KUALITAS AIR DAN UPAYA KONSERVASI SUMBERDAYA LAHAN DI DAS CITARUM HULU, KABUPATEN BANDUNG Muhammad Widyar Rahman; M. Yanuar Jarwadi Purwanto; Suprihatin Suprihatin
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 4 No. 1 (2014): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.4.1.24

Abstract

Relationships between water quality and catchment characteristics are examined for rivers in the Upper sub Watersheds of Citarum using a GIS-based approach. The study aimed to analyze the relationship of type of land cover and water quality parameters in response to surface runoff. The multiple linear regression model was evaluated to demonstrate the relationship between the both variables. Stepwise multiple linear regressions demonstrated that agriculture and settlement land cover type was able to describe the overall water quality status. Physico-chemicals of water quality parameters could be sufficiently predicted using one land use/land cover type. Stepwise regression results showed that paddy field were significantly related to pH, DO, BOD and COD.Forestrelated significantly to TDS and temperature in dry periods. Water quality parameters over the period of the rainy seasons including agricultural related significantly to temperature, BOD, COD, TP and H2S. Nitrite and TDS had relationship with settlement and paddy field had relationship with pH and TSS. Moreover, only forest had relationship with DO in wet periods. The overall statistically relationships were significant in p < 0.05. This research provides perspective relationship between water quality and land cover types which is an important factor for the water resources conservation in the management plans. Keywords: water quality, land cover, surface runoff, stepwise linear regressions, water resources conservation
PENERAPAN METODA FUZZY DALAM KLASIFIKASI LAHAN KRITIS BERBASIS HYDRAULIC RESPONSE UNIT (HRU) SUBDAS CISANGKUY Bambang Setio Budianto; Muhammad Yanuar Jarwadi Purwanto; Widiatmaka Widiatmaka; Lilik Budi Prasetyo
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 8 No. 1 (2018): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.8.1.120-126

Abstract

Various natural disasters, such as floods and landslides, are often associated with extreme weather conditions, especially rainfall, where in fact the possibility of such a disaster will be smaller if the carrying capacity of the land is still good. The decrease of land carrying capacity is often due to land use change, so that the land is not capable to perform it functions and is categorized as critical land. The decline in land carrying capacity will affect other resources, especially water resources. Anticipatory measures of natural disasters such as floods and landslides can perfectly prepared if information regarding land conditions, including land criticality, are available in detail and up to date. The classification and mapping of land criticality becomes an important component in the preparation of land rehabilitation and natural disaster prevention plans including setting the priority actions. The Minister of Forestry Regulation no P.32 / Menhut-II / 2009 concerning Procedures for Preparation of Forest and Watershed Technical Rehabilitation Plan was use as criteria for land classification and both Fuzzy and Crisp calculation methods were applied to calculate the final score. Different classification result was found in 23 HURL and comparing to actual the condition, the Fuzzy method gives more accurate result than Crisp method.
STRATEGI PENGENDALIAN ECENG GONDOK (Eichornia crassipes)DI PERAIRAN WADUK JATILUHUR, JAWA BARAT Ezra Fajar Dewantara; Yanuar Jarwadi Purwanto; Yudi Setiawan
Jurnal Penelitian Sosial dan Ekonomi Kehutanan Vol 18, No 1 (2021): Jurnal Penelitian Sosial dan Ekonomi Kehutanan
Publisher : Pusat Penelitian dan Pengembangan Sosial, Ekonomi, Kebijakan dan Perubahan Iklim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpsek.2021.18.1.63-74

Abstract

Indonesia has quite extensive multi-purpose reservoir waters, one of which was built for the first time is the Ir. H. Djuanda reservoir or better known as Jatiluhur reservoir. The activities carried out in the Jatiluhur reservoir are varied, such as fisheries, transportation,water sources as well as power generation as secondary functions of the reservoir. If managed properly, the reservoir will give a real contribution to the economy and welfare of the community without disrupting the sustainability of the ecosystems and its functions. In Indonesia, problems that often occur in all aquatic ecosystems are eutrophication (nutrient enrichment), sedimentation, and pollution. Water hyacinth (Eichorniacrassipes) is a type of aquatic plant that is generally considered as a weed. The study aims to formulate a water hyacinth management strategyusing the SWOT method with ten respondents.The selection of respondents using purposive sampling method.The results showed that all stakeholders, government, and communities must work together in utilizing and managing reservoirs and watersheds that enter the reservoir waters so that the quality status of reservoir becomes better and the growth of water hyacinth does not increase rapidly. Water hyacinth can also be used as fertilizer or crafts and not just a weed.
BEBERAPA SKENARIO PENGGUNAAN LAHAN UNTUK PERBAIKAN KONDISI HIDROLOGI DI DAERAH ALIRAN SUNGAI CIDURIAN (Land use scenarios for hydrological conditions improvement in Cidurian Watershed) kartika triasary; Muhammad Yanuar Jarwadi Purwanto; Suria Darma Tarigan
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 5, No 2 (2021): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Managem
Publisher : Center for Implementation of Standards for Environmental and Forestry Instruments Solo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jppdas.2021.5.2.121-140

Abstract

ABSTRACT Cidurian Watershed is one of the watersheds in Java Island that is classified as a watershed to be restored. The performance of Cidurian Watershed, from upstream to downstream, is classified as poor. This research aims to 1) assess the hydrological characteristics of Cidurian Watershed using the SWAT (Soil and Water Assessment Tool) hydrological model; 2) assess the hydrological performance based on the prepared simulation scenarios; and 3) formulate successful strategies of Land and Forest Rehabilitation for Cidurian Watershed based on the best scenario. Various land use and management scenarios were simulated using SWAT to estimate their impact on the hydrological characteristics of the Cidurian Watershed. The applied scenarios are as follows: 1) Implementation of Spatial Planning of Banten and West Java Province; 2) Implementation of Forest and Land Rehabilitation with vegetative planting and; 3) Implementation of Forest and Land Rehabilitation for vegetative planting and combined with Soil and Water Conservation measures. The calibration and validation of the model showed a satisfactory category with NSE values of 0.53 and 0.50, respectively. All scenarios result in a better improvement on hydrological responses compared to the existing conditions in 2020. The surface runoff and sediment yield decreased and the lateral flow and base flow increased. The scenarios reduced the value of the Annual Flow Coefficient and Flow Regime Coefficient. Implementation of Forest and Land Rehabilitation and Soil and Water Conservation is the best scenario with Annual Flow Coefficient and Flow Regime Coefficient values 0,27 and 22.40.Keywords: Cidurian Watershed; land and forest rehabilitation; SWAT model; water and soil conservation ABSTRAK Daerah Aliran Sungai (DAS) Cidurian merupakan salah satu DAS di Pulau Jawa dengan kategori sebagai DAS yang dipulihkan. Kinerja DAS Cidurian secara umum dari hulu sampai dengan hilir termasuk dalam klasifikasi kategori buruk. Penelitian ini bertujuan untuk 1) mengkaji karakteristik hidrologi DAS Cidurian menggunakan model hidrologi SWAT; 2) mengkaji kinerja hidrologi berdasarkan skenario simulasi yang disusun; dan 3) menyusun strategi keberhasilan Rehabilitasi Hutan dan Lahan pada DAS Cidurian berdasarkan scenario terbaik. Berbagai skenario penggunaan lahan dan pengelolaannya diujicobakan menggunakan model SWAT (Soil and Water Assessment Tool) untuk menduga dampak penerapannya terhadap karakteristik hidrologi pada DAS Cidurian. Skenario yang diaplikasikan adalah sebagai berikut: 1) Implementasi RTRW (Rencana Tata Ruang Wilayah) Provinsi Banten dan Jawa Barat; 2) Implementasi Rehabilitasi Hutan dan Lahan dengan penanaman vegetatif dan; 3) Implementasi Rehabilitasi Hutan dan Lahan penanaman vegetatif dan Konservasi Tanah dan Air secara vegetatif dan sipil teknis. Kalibrasi dan validasi dari model menunjukkan kategori memuaskan dengan nilai NSE (Nash-Sutcliffe Efficiency) 0,53 dan 0,50. Semua skenario menunjukkan peningkatan respon hidrologi dibandingkan dengan kondisi eksisting tahun 2020. Ketiganya memberikan respon limpasan permukaaan dan hasil sedimen yang menurun serta aliran lateral dan aliran dasar yang meningkat. Semua skenario ini menurunkan nilai Koefisien Aliran Tahunan (KAT) dan Koefisien Regim Aliran (KRA). Skenario penerapan kombinasi Rehabilitasi Hutan dan Lahan penanaman vegetative dan Konservasi Tanah dan Air menjadi skenario terbaik dengan nilai KAT 0,27 (kategori rendah) dan KRA 22,40 (kategori rendah).Kata kunci: DAS Cidurian; konservasi tanah dan air; model SWAT; rehabilitasi hutan dan lahan
Prospek Budidaya Kedelai Berdasarkan Kebutuhan Air Tanaman dan Zona Agroklimat di Provinsi Jambi Najla Anwar Fuadi; M. Yanuar Jarwadi Purwanto; Afri Fajar
Jurnal Irigasi Vol 15, No 2 (2020): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31028/ji.v15.i2.85-94

Abstract

Soybean (Glicine max) has the potential to be developed because it cannot only be processed into foodstuffs but also become livestock feed. In addition to using technology, enhancement of crop production can be done by looking at water availability and pay attention to the weather factors, especially to increase crop intensity. This research aims to determine the crop water requirements based on the agroclimatic zone. The quantitative descriptive analysis and data processing were conducted using the Cropwat model. This model was created by FAO specialists to provides an opportunity for automation of all the necessary calculations for evapotranspiration determination. Cropwat is an easy-to-operate software that can minimize human error. Climate classification was identified based on precipitation data in Jambi province respectively in Muaro Jambi Regency at Sultan Thaha Station, Jambi Palmerah, and Depati Parbu. The agroclimatic zone for those areas, respectively, are D1, D2, and E2. Based on the rainfall, all three districts are feasible for soybean cultivation with average rainfall between 127.11 mm – 192.51 mm per month. The amount of crop water requirements is also an essential factor for cultivating a plant so that the water can be administered according to the needs of plants and can provide optimal production. Based on water balance, the surplus in Muaro Jambi Regency Jambi Province occurs in January, February, March, April, September, October and December. East Tanjung Jabung Regency surplus is in January, February, March and April. West Tanjung Jabung Regency surplus occurs in January, February, March, October, November and December. The results of this calculation indicate that Jambi Province has the potential to cultivate soybean plants because they have sufficient water availability.
Co-Authors Afri Fajar Ayub Ayub Ayub Ayub Ayub Ayub Bambang Pramudya Noorachmat, Bambang Pramudya Bambang Setio Budianto Dwi Ariyani Euis Sunarti Ezra Fajar Dewantara Frangky J. Paat Hariyadi Hariyadi Hasim Danuri Hefni Effendi Juniati, Atie Tri kartika triasary Khursatul Munibah LILIK BUDIPRASETYO Muhammad Syahdan Shah Muhammad Widyar Rahman Najla Anwar Fuadi Nugraheni, Claudia Tyas P. Perdinan Pawitan, Hidayat Petrus Adam Rafidah Imran Ridwansyah, Iwan Ronny Soputan Sinta Kusumasari Sukisno Sukisno, Sukisno Suprihatin Suprihatin Suria Darma Tarigan Taryono Taryono Titi Candra Sunarti Ulfah Sarach Sheftiana Wanca Aldrianus Widiatmaka Widiatmaka Widiatmaka Widiatmaka Widiatmaka Widiatmaka Widiatmaka Wiwin Ambarwulan Wiwin Ambarwulan Yudi Setiawan Yudi Setiawan4